Bed-spring construction.



W. J. KAiN.

BED SPRING CONSTRUCTION,

APPLICATION FILE-D JAN. 24, 1917.

1,246,277. Patented Nov. 13, 1917.

UNITED STATES PATENT @FFIQE.

WILLIAM J. KAIN, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR OF ONE-THIRD .TO

ANTHONY n. FOX AND ONE-THIRD TO onnnnnsa. vEnsrA'Y,

' RAPIDS, MICHIGAN.

BOTH OF GRAND BED-SPRING CONSTRUCTION.

Specification of Letters Patent. Patented N 13, 1917.

Application filed January 24, 1917. Serial No. 144,129.

To all whom it may concern:

Be it known that I, WVILLIAM J. KAIN, a citizen of the'United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain newand useful Improvements in Bed-Spring Constructions; and I do hereby declare the following to be a full, clear, and

under tension, and which yield on applica tion of weight to the members. It is anobject and purpose primarily of my invention to provide a fabric in which the members extending lengthwise of the frame are alternately disposed in two planes at an angle to each other which cross at substantially mid-' way between the ends of the spring frame whereby each of the members are located at a higher point at one end than at the other when attached to the spring frame. In this manner the crossing points of all of the members are located where the greatest Weight is normally applied to'a bedspring when in use and at each end the fabric is reinforced by the under members whereby the fabric is capable of supporting vany weight which may be applied to it. These ends and many others not particularly enumerated are attained in the construction shown in the accompanying drawing in which:

Figure 1 is a side elevation of the spring.

Fig. 2 is a plan view thereof and,

Fig. 3 is a fragmentary longitudinal sec tion taken at one end of the spring.

Like reference characters refer to like parts throughout the several views of the drawing.

The frame which supports the fabric includes in its construction a pair of parallel rods 1 at the end of which brackets 2 are secured. Angle iron connecting bars having outwardly extending flanges 3 and downwardly extending flanges 1 as shown are used and the frame may be otherwise reinforced and strengthened if desired. Flat metal bands 5 are located at each side lengthwise of the frame and are connected to the flanges 3 by helical springs 6 at each end. The construction thus far described is not substantially different from many other spring structures.

Along the length of the angle irons a pin rality of helical springs 7 are located and attached to the horizontal flanges 3 thereof. Between the springs 7 similar springs 8 are located and connected adjacent the lower ends of the vertical flanges i. It will be noted that each spring 7 at one end of the frame is directly opposite 'a lower spring 8 at the opposite end of the frame. A length of wire cable or the/like is doubled and formed into an elongated loop which is interposed between each spring 7 at one end of the frame and-a lower spring 8 at the op posite end of the frame, it being apparent that one end of the loop, indicated at 10, is in a higher plane than the opposite end 11 and that the various loops in the making up of the spring cross each substantially midway between their ends. After the, loops have been attached to their respective springs 7 and 8 on opposite ends of the frame the adjacent wires of adjacent loops are connected at spaced apart intervals by metallic clips 12 while between consecutive pairs of clips 12 the wires of each loop which have been separated 'a distance by the clips 12 are brought to approach each other and connectedby clips 18. Thismakes a more or less connected fabric but one which when weight is applied at one side thereof does not appreciably affect the opposite side.

or any other section of-the fabric at a distance. In addition clips 14 are used to con nect the bands 5 with the outside wires of the outside loops and at the middle points of the loops the wires are parallel for a dis tance as shown at 15 and are connected by clips 16.

The fabric thus made is one which is capable of withstanding hard service and is strongest substantially midway between the ends thereof. While at either end if the upper cables are depressed sufliciently they arereinforced by the cables underneath and held against sagging. There is made, in this manner, a spring which is absolutely insured against sagging and one which does not communicate the strains to which it may be subjected at any point to sections of the spring at a distance therefrom.

The construction outlined is a preferred one and one which in practical use has demonstrated its utility. It is of course understood that the members interposed between the helical springs at each end of the frame may be of different forms and shapes and, while small wire cables are used preferably, nevertheless any other flexible members such as chains, wires, ropes or the like may be used if desired. Accordingly, I do not wish to be limited in my invention to the particular and specific type of structure disclosed but consider myself entitled to all constructions which come within the scope of the appended claims defining my invention.

I claim 1. In combination, spaced apart end rails, flexible members interposed between and connected to the rails, said flexible members including a series of members positioned at one end in a plane higher than at the other end, and a second series of members alternating with and lying between the members of the first series,and likewise positioned at one end, in a plane higher than at the other end, with the relative high and low ends of the members of the two series connected to opposite end rails, substantially as described.

2. In-combination, end rails, a series of flexible members interposed between the end rails, yielding spring connections between the ends of said members and the rails, said connections atone end being in a lower plane than at the opposite end, and a second series of flexible members interposed be tween the end rails and similarly connected thereto, with the connections at said one end in a higher plane than at said other end whereby said flexible members cross substantially midway between their ends.

3. In a bed or couch fabric, a series of longitudinal members alternately crossing each other in the width of the fabric, and each having one end located in a higher plane than its other end, and withthe high and the low ends of the alternately crossing members located at opposite ends of the fabric.

4. In a bed or couch fabric, a supporting frame having end rails of angle iron formation with horizontal flanges, and downwardly extending vertical flanges, helical springs positioned lengthwise of the rails and connected alternately to the horizontal flanges and adjacent the lower edges of the vertical flanges, and flexible members interposed between the rails each being connected to an upper spring'at one end and a lower spring at the opposite end, whereby two series of members are formed lying al ternately in different planes which cross between the ends of said members.

5. In a bed or couch fabric, a supporting frame having end rails, a series of longitudinal loops formed of wire cable alternately positioned at an angle to each whereby they cross between 7 their ends and located throughout the width of the frame between the end rails and disposed in planes substantially perpendicular to the length of the end rails, and means connecting the ends of said loops to the end rails.

6. In a bed or couch fabric, a supporting frame having end rails, a seri es of longitudinal loops of wire alternately positioned at an angle to each other and in planes substantially perpendicular to the length of the end rail wiereby they cross between their ends, spring connections between the ends of the loops and said end rails, clips connecting adjacent wires of adjacent loops andclips b tween each pair of said first mentioned clips, connecting the wires of each loop.

In testimony whereof I affix mysignature WILLIAM J, Kain.

Copies of this patent may be obtained for five cents each, by addressing the Commissioneref Patents,

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